| abstract |
The invention relates to an electric heating device (1) for an automotive vehicle that is suitable for being supplied with voltage by first and second networks (G12, G48) comprising: - first, second and third connection interfaces (I12, I48, ILW) for connecting with the first network, the second network and a communication bus (BLW), respectively; - a functional module (11) linked to the first connection interface (I12) and to the second connection interface (I48); - a main switch (Q2) linked to the functional module (11) that is suitable for conveying signals (DAT) over the communication bus (BLW); - a first protection module (10) that is suitable for isolating the first network (G12) and the communication bus (BLW) from the second network (G48) when there is an overvoltage (USS) between the functional module (11) and the first and third connection interfaces (I12, ILW). |